1： The absorption amount (dosage) of preservatives is calculated as per the absorption amount of preservatives per cubic meter or per square meter, while oil preservatives are calculated as per the oil absorption amount, oil soluble or water-soluble preservatives as per the dry drug amount.
2： The penetration depth of chemicals in wood and the drug absorption amount or penetration uniformity of the inner layer.
The absorption amount is determined according to the nature (such as toxicity and durability), tree species, use and treatment method of the preservative; The absorption of preservative by wood can be determined by the weight difference of wood before and after treatment, or the dosage (consumption) of preservative before and after treatment.
The absorption amount is related to the size of the wood. Generally, the absorption amount of small wood is high, while that of large wood is relatively small. The absorption amount of the diffusion method of brushing, spraying and painting is calculated by the amount of medicine per square meter.
Penetration depth The depth of the preservative from the surface to the interior of the wood has a lot to do with the quality of the antiseptic wood. In particular, sapwood needs to penetrate to a certain depth to ensure the antiseptic quality, because sapwood often has latent infection fungi. Generally, the sapwood is required to be completely transparent, and the wide sapwood shall be at least 85%.
Penetration depth to dark oil preservative can be directly measured from the wood section depth and sapwood thickness. The colorless or light color preservative can be treated with chemical developer.
The above is a detailed introduction of Jinan antiseptic wood, and I hope it will be helpful to you. If you have any questions, please contact us. We will provide you with professional services http://www.jnajgc.com